Average Sunshine in Colorado for December

Number of Sunny Days

In the table below, the average number of Sunny Days for a city in Colorado is the total days this month when the sky is mostly clear. This includes the days when cloud covers up to 30% of the sky during daylight hours.

Partly Sunny Days have cloud covering from 40% to 70% of the sky during the daytime.

Total Days With Sun is a sum of the Sunny plus Partly Sunny days. The rest of the days are mainly overcast, with at least 80% cloud cover. All the numbers are annual averages, made from years of weather watching.

Days of sunshine in December
City Sunny Partly Sunny Total Days
With Sun
Alamosa 14 10 24
Colorado Springs 12 8 20
Denver 11 10 21
Grand Junction 10 8 18
Pueblo 12 9 21

Amount of Sun

Here's another way to look at how much sunshine a city gets. The % Sun number measures the percentage of time between sunrise and sunset that sunshine reaches the ground. Again, these amounts are monthly averages based on many years of weather observations.

Percent sunshine for December
City % Sun
Denver 69
Grand Junction 71
Pueblo 76

National Climatic Data Center. Comparative Climatic Data.

Colorado Sunshine
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